How to make a shared XAML Page between different projects in Windows 10 UWP?

Let's say I have ten Apps. I also have a project with an "AboutPage" that downloads feeds from my blog. I don't want to recode or copy & paste that page and it's logic in every project of my Apps; also if I made some update to that page, I would like them to be visible to the other projects.

I think I would need to reference the page into the other projects, but I can I solve the problem of the different namespaces and so on?

Is a good idea making a custom control like a "MyBlogFeedReader" and put it into a page?